白〓の調製法と化学的品質評価(第5報) : 保存中におけるフロクマリンの減少

概要

論文の詳細を見る
Angelica dahurica roots were preserved under various conditions for one year and were chemically evaluated by the contents of furanocoumarins. Eight linear furanocoumarins, i.e., psoralen, xanthotoxin, bergapten, byak-angelicol, oxypeucedanin, imperatorin, phellopterin and isoimperatorin, gradually decreased in the course of time during preservation except under dark and cold conditions. The contents of eight furanocoumarins decreased by UV irradiation for one week. The remarkable decrement of byak-angelicol and oxypeucedanin was observed when the powdered roots were heated at 50-60℃ for one week. The other six furanocoumarins were stable to heating. These findings showed that the decrement of eight furanocoumarins during preservation could be due to not only pyrolysis but also being bathed in light especially UV.
日本生薬学会の論文
2004-10-20